Anyone have an opinion on whether the Garrett GT3582R turbo or the Borg-Warner K27 is better?
The compressor map for the K27 looks awesome. Essentially, it has an efficiency island right where I need one.
On the GT3582R, the turbo is bigger than I need but gives me room to grow.
Mostly I'm just wondering if the K27 is too good to be true. On some of the air-cooled Porsche forums, guys are swapping from the K27 to the GT3582R. The K27 is older technology (no ball bearings) and has a smaller inlet (the GT3582R is 4"). They're a little harder to find but Godspeed seems to stock some still. I think the biggest worry is that there was an evolution in the K27 and the older ones are not as good as the newer ones but how do you know which one you're getting?
Any thoughts? Thanks.
P.S.: compressor maps...K27: http://lh3.ggpht.com/__pqkhEfdq8I/SIjGa ... rs-K27.jpg
GT3582R: http://www.turbobygarrett.com/turbobyga ... larged.gif (for a 5.0L engine, too!)
The compressor map for the K27 looks awesome. Essentially, it has an efficiency island right where I need one.
On the GT3582R, the turbo is bigger than I need but gives me room to grow.
Mostly I'm just wondering if the K27 is too good to be true. On some of the air-cooled Porsche forums, guys are swapping from the K27 to the GT3582R. The K27 is older technology (no ball bearings) and has a smaller inlet (the GT3582R is 4"). They're a little harder to find but Godspeed seems to stock some still. I think the biggest worry is that there was an evolution in the K27 and the older ones are not as good as the newer ones but how do you know which one you're getting?
Any thoughts? Thanks.
P.S.: compressor maps...K27: http://lh3.ggpht.com/__pqkhEfdq8I/SIjGa ... rs-K27.jpg
GT3582R: http://www.turbobygarrett.com/turbobyga ... larged.gif (for a 5.0L engine, too!)